The reason most island-hopping boats include Koh Kradan is not only the sand but what lies just off it. A fringing reef runs along parts of the east coast, close enough that strong swimmers can reach it from the beach. In good conditions you can see hard and soft corals, parrotfish, wrasse, clownfish in their anemones and, if you are lucky, a turtle grazing over the reef.
Like many reefs in the Andaman Sea, Kradan’s corals have suffered from bleaching in hot years and from careless visitors. They are still worth seeing, and they deserve gentle treatment: float, do not stand; look, do not touch.
Conditions vary with the season and the tide. From about November to April the sea is usually calm and the water clear; in the south-west monsoon, waves and stirred-up sand can make snorkelling disappointing or unsafe.
Top things to do at The Kradan House Reef
Snorkel from the beach
Ask your resort where the coral starts in front of it. Enter over sand, never over coral, and go at mid to high tide.
Take a longtail to the outer reefs
A private longtail can take you to reefs around Kradan and to Koh Chueak and Koh Waen, the classic snorkelling stops of the 4-islands trip.
Look for turtles and reef fish
Move slowly along the reef edge. Turtles are shy; never chase or touch them.
Try a dive
Dive trips in the Trang islands are usually run from Koh Lanta or the mainland; ask your resort whether any operator collects divers from Kradan.
How to get to The Kradan House Reef
- The house reef lies off the east beach, where all boats land.
- Every 4-islands day trip that stops on Kradan gives you time to snorkel here.
Insider tips
- Bring your own mask and snorkel if you can; resort and tour gear varies in quality.
- Use mineral, reef-safe sunscreen and a rash vest instead of large amounts of lotion.
- Never stand on coral — wear a life jacket or fins if you need a rest.
- Watch for boat traffic, especially near the landing points at midday.
Best tours & tickets for The Kradan House Reef
These experiences are the easiest way to see The Kradan House Reef:
Island-hopping day trip from €37 4-Island Tour from Koh Lanta to Koh Kradan with Beach Lunch
A full day built around Koh Kradan, rated 4.6 by several hundred travellers: island-hopping and snorkelling through the Trang islands, with lunch on Kradan’s white east beach. A good choice if you want real beach time on Kradan rather than a quick stop.
- Lunch on the beach at Koh Kradan
- Snorkelling and island-hopping in the Trang islands
- Pickup available from many Koh Lanta hotels
Island-hopping day trip from €42 Koh Lanta: 4 Islands, Emerald Cave & Koh Kradan by Speedboat
The same classic route as the longtail trips, but by speedboat, which cuts the crossing time from Lanta and leaves more time in the water. Rated 4.7, with lunch on Koh Kradan. Speedboats are less comfortable in a choppy sea, so it is best in the calm months.
- Faster crossings by speedboat — more time at the stops
- Emerald Cave, coral reef snorkelling and island beaches
- Buffet lunch on Koh Kradan
Island-hopping day trip from €24 Koh Lanta: 4 Islands, Emerald Cave & Koh Kradan by Longtail
The most-reviewed trip that reaches Koh Kradan, with well over a thousand reviews. A traditional longtail takes you south from Koh Lanta to the Trang islands: Emerald Cave, snorkelling stops and a beach lunch. There are two options — pick the one that names Koh Kradan if the island is why you are going.
- Swim through Emerald Cave to the hidden beach on Koh Muk
- Snorkel stops on the reefs of the Trang islands
- Beach lunch — choose the option that includes Koh Kradan
